5CDX

Crystal structure of conserpin


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.40 Å
  • R-Value Free: 0.258 
  • R-Value Work: 0.194 
  • R-Value Observed: 0.198 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Smoothing a rugged protein folding landscape by sequence-based redesign.

Porebski, B.T.Keleher, S.Hollins, J.J.Nickson, A.A.Marijanovic, E.M.Borg, N.A.Costa, M.G.Pearce, M.A.Dai, W.Zhu, L.Irving, J.A.Hoke, D.E.Kass, I.Whisstock, J.C.Bottomley, S.P.Webb, G.I.McGowan, S.Buckle, A.M.

(2016) Sci Rep 6: 33958-33958

  • DOI: 10.1038/srep33958
  • Structures With Same Primary Citation

  • PubMed Abstract: 
  • The rugged folding landscapes of functional proteins puts them at risk of misfolding and aggregation. Serine protease inhibitors, or serpins, are paradigms for this delicate balance between function and misfolding. Serpins exist in a metastable state ...

    The rugged folding landscapes of functional proteins puts them at risk of misfolding and aggregation. Serine protease inhibitors, or serpins, are paradigms for this delicate balance between function and misfolding. Serpins exist in a metastable state that undergoes a major conformational change in order to inhibit proteases. However, conformational labiality of the native serpin fold renders them susceptible to misfolding, which underlies misfolding diseases such as α 1 -antitrypsin deficiency. To investigate how serpins balance function and folding, we used consensus design to create conserpin, a synthetic serpin that folds reversibly, is functional, thermostable, and polymerization resistant. Characterization of its structure, folding and dynamics suggest that consensus design has remodeled the folding landscape to reconcile competing requirements for stability and function. This approach may offer general benefits for engineering functional proteins that have risky folding landscapes, including the removal of aggregation-prone intermediates, and modifying scaffolds for use as protein therapeutics.


    Organizational Affiliation

    Biomedicine Discovery Institute, Department of Biochemistry and Molecular Biology, Monash University, Clayton, Victoria 3800, Australia.



Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
ConserpinA378synthetic constructMutation(s): 0 
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.40 Å
  • R-Value Free: 0.258 
  • R-Value Work: 0.194 
  • R-Value Observed: 0.198 
  • Space Group: C 2 2 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 68.14α = 90
b = 76.12β = 90
c = 150.24γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
SCALAdata scaling
PHASERphasing

Structure Validation

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Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2016-07-20
    Type: Initial release
  • Version 1.1: 2016-10-05
    Changes: Database references